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    • 22. 发明申请
    • VERFAHREN UND SCHALTUNG ZUM BERÜHRUNGSLOSEN ZÜNDEN EINES SCHWEISSLICHTBOGENS MIT HOCHFREQUENTEN ZÜNDIMPULSPAKETEN
    • 方法与电路高频焊接电弧非接触LIGHTZÜNDIMPULSPAKETEN
    • WO2005051585A1
    • 2005-06-09
    • PCT/AT2004/000394
    • 2004-11-10
    • FRONIUS INTERNATIONAL GMBHPRINZ, AndreasPAMMER, WalterHIESLMAIR, GeraldKROISS, Uwe
    • PRINZ, AndreasPAMMER, WalterHIESLMAIR, GeraldKROISS, Uwe
    • B23K9/067
    • B23K9/093B23K9/0673
    • Die Erfindung betrifft ein Verfahren zum berührungslosen Zunden eines Schweisslichtbogens, sowie eine Schaltung (28) zum berührungslosen Zünden eines Schweisslichtbogens mit einer Ladeschaltung (31), zumindest einem Impulskondensator (30), einer zumindest einen Schalter enthaltenden Entladeschaltung, und einem Hochspannungsübertrager (32) zur Einkopplung der sich vom Impulskondensator (30) über den Schalter entladenden Hochfrequenz-Zündimpulse zur Schweisselektrode (27). Zur Schaffung eines derartigen Zündverfahrens sowie einer Zündschaltung (28), durch welche eine exaktere bzw. sichere und sehr schnelle Zündung des Lichtbogens möglich wird bzw. zur Schaffung einer höheren Zündfähigkeit ist eine mit der Ladeschaltung (31) verbundene Impulskompressionsschaltung (40) vorgesehen, umfassend den Impulskondensator (30), den Hochspannungsübertrager (32) und den Schalter, wobei der Schalter durch eine magnetische Drossel (41) gebildet ist, so dass eine hochfrequente Schaltung der Zündimpulse erreichbar ist.
    • 本发明涉及一种用于非接触式的方法点燃焊接电弧,以及用于焊接电弧的与充电电路(31),至少一个脉冲电容器(30),一个至少一个开关包含放电电路,和一个高压变压器(32)的非接触式点火电路(28),用于 从经由开关放电的高频点火脉冲施加到焊接电极(27)的电容器(30)的脉冲的耦合。 是提供这样的点火方法和点火电路(28),通过该电弧的更精确或非常快速而可靠的点火是可能的,或者创造更高的点火性,提供了一种向连接到脉冲压缩电路(40)的充电电路(31),其包括 从而达到点火脉冲的高频电路的脉冲电容器(30),所述高压变压器(32)和开关,其中所述开关由磁性扼流圈(41)形成。
    • 24. 发明申请
    • METHOD FOR EXCITATION OF AN ELECTRIC ARC AND DEVICES THEREFOR
    • 用于激发电弧的方法及其装置
    • WO01028730A1
    • 2001-04-26
    • PCT/RU2000/000223
    • 2000-06-08
    • H05B7/18B23K9/067H02M7/538G05F1/04
    • B23K9/0673B23K2203/04B23K2203/10
    • The invention relates to the field of electrical engineering. In order to excite an electric arc in a normal manner and melt contaminated and oxydized aluminium, steel and metal, the circuit breaker is disconnected from the output of a power supply and said output is supplied with an amplification voltage having the same polarity and being of a greater amplitude. A delayed voltage pulse of an opposing polarity to the power supply for said electric arc is transmitted in the arc interval. The rated value of said voltage exceeds the above-mentioned amplification voltage and has a shorter flank. The invention also relates to a device for exiting an electric arc, comprising an internal amplification voltage source, a blocking inductance and a long "cable-type" element. The invention further relates to an improved excitation voltage pulse source and magnetic conductors, in addition to a method for the use and control thereof.
    • 本发明涉及电气工程领域。 为了以正常方式激发电弧并熔化受污染和氧化的铝,钢和金属,断路器与电源的输出断开,并且所述输出被提供具有相同极性的放大电压,并且具有 振幅较大。 在电弧间隔中传输与电弧的电源相反极性的延迟电压脉冲。 所述电压的额定值超过上述的放大电压并具有较短的侧面。 本发明还涉及一种用于离开电弧的装置,包括内部放大电压源,阻塞电感和长“电缆型”元件。 本发明还涉及一种改进的激励电压脉冲源和磁性导体,以及用于其使用和控制的方法。
    • 25. 发明申请
    • ARC IGNITION FOR ARC WELDING APPARATUS
    • 电弧焊接装置的点火
    • WO0038873A9
    • 2001-04-26
    • PCT/US9930936
    • 1999-12-27
    • PLASMA LASER TECHNOLOGIES LTDFRIEDMAN MARK MIGNATCHENKO GEORGYBOGACHENKOV EVGENYDYKHNO IGOR
    • IGNATCHENKO GEORGYBOGACHENKOV EVGENYDYKHNO IGOR
    • B23K9/067
    • B23K9/0673
    • A welding electrode (102) and a workpiece connected with a welding power source (106) are simultaneously connected to at least two additional high voltage power sources (110, 112). A short aperiodic high voltage pulse is transmistted from the firt high voltage power source (110) to a gap between the electrode and the workpiece, creating an electric discharge and current conducting duct in the air between the electrode (102) and the workpiece. This short pulse is superimposed by another long, high voltage pulse from the second high voltage power source (112). A stretched pulse appears, and the duration of the current discharge increases. The current conducting duct is heated, its resistance decreases and an arc is ignited. When the voltage in the current conducting duct decreases to a value less than that of the open circuit of the welding power source (106), welding current starts flowing from the latter through the welding electrode (102) and arc to the workpiece.
    • 焊接电极(102)和与焊接电源(106)连接的工件同时连接至至少两个附加的高压电源(110,112)。 短路的非周期性高电压脉冲从空气高压电源(110)传播到电极和工件之间的间隙,在电极(102)和工件之间的空气中产生放电和导电管。 该短脉冲由来自第二高压电源(112)的另一长的高电压脉冲叠加。 出现拉伸的脉冲,并且电流放电的持续时间增加。 电流导管被加热,电阻减小,电弧点火。 当电流导管中的电压降低到比焊接电源(106)的开路小的值时,焊接电流从后者通过焊接电极(102)开始流动并且电弧流入工件。
    • 26. 发明申请
    • ARC WELDING METHOD
    • 弧焊方法
    • WO00038870A1
    • 2000-07-06
    • PCT/JP1998/005923
    • 1998-12-24
    • B23K9/067B23K9/073B23K9/09B23K9/095B23K9/173B23K9/00
    • B23K9/173B23K9/067B23K9/0731B23K9/0732B23K9/09B23K9/0956
    • An arc welding method capable of suppressing the generation of spattering while suppressing the amount of gas supplied to the welding portion, wherein a welding wire (8) is brought into contact with a work (W) while applying a voltage between the welding wire (8) and the work (W), and the end of the welding wire (8) that is melted is welded to the work (W). The electric resistance between the welding wire (8) and the work (W) is continuously found while the welding wire (8) is in contact with the work (W), in order to detect a minimum value of the electric resistance. When the application of a voltage between the welding wire (8) and the work (W) is temporarily discontinued after the minimum value of the electric resistance is detected, the end of the welding wire (8) is not likely to burst, suppressing the scattering of molten droplets, which cause spattering, from the molten wire (8).
    • 一种电弧焊接方法,其能够抑制供给到所述焊接部的气体的量,同时在焊丝(8)之间施加电压而使焊丝(8)与工件(W)接触,同时抑制发生飞溅, )和工件(W),并且熔化的焊丝(8)的端部焊接到工件(W)。 为了检测电阻的最小值,在焊丝(8)与工件(W)接触的同时,连续地找到焊丝(8)和工件(W)之间的电阻。 当在检测到电阻的最小值之后施加电焊丝(8)和工件(W)之间的电压暂时中断时,焊丝(8)的端部不可能爆裂,抑制 从熔融金属丝(8)散射出引起飞溅的熔融液滴。
    • 27. 发明申请
    • ARRANGEMENT WITH TRANSFER OF MEASURED VALUES
    • 安排与测量值的转移
    • WO99012691A1
    • 1999-03-18
    • PCT/SE1998/001614
    • 1998-09-10
    • B23K9/067B23K9/09B23K9/095
    • B23K9/0673
    • The invention relates to an arrangement for material transport and/or energy transport by means of electric arc. Measured values are transferred with suppression of disturbances from the HF device (2) without appreciable damping of the HF voltage to the electrode (14). A measurement winding (16) is arranged together with a power winding (8) in such a way that effective suppression of disturbances is achieved. Examples of areas of application are thermal spraying, cutting and welding, in particular mechanized TIG welding, but the invention is principally indicated in cases where a spark is established with HF voltage across a gap filled with a gas or a gas/liquid mixture and where at the same time some parameter has to be measured in connection with the spark gap.
    • 本发明涉及一种通过电弧进行材料输送和/或能量输送的装置。 测量值随着HF器件(2)的干扰抑制而传递,而HF电压没有明显的阻尼到电极(14)。 测量绕组(16)与功率绕组(8)一起布置,以便实现有效抑制干扰。 应用领域的实例是热喷涂,切割和焊接,特别是机械化TIG焊接,但是本发明主要表示在用填充有气体或气体/液体混合物的间隙上用高压电压建立火花的情​​况下, 同时一些参数必须与火花间隙相关来测量。